<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>Insert title here</title>
	</head>
	<body>
		<!-- 块级分区元素：独占一行 -->
		<div>div1</div>
		<div>div2</div>
		<div>div3</div>
		
		<!-- 行内分区元素：共占一行 -->
		<sapn>span1</sapn>
		<span>span2</span>
		<span>sapn3</span><hr>
		
		我是斜体<i>标签</i>，我也是斜体<em>标签</em>
		<br>
		我是加粗<b>加粗</b>，我也是加粗<strong>标签</strong>
		<br>
		我是删除线<s>标签</s>，我也是删除线<del>标签</del>
		<br>
		我是&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;下划线<u>标签</u>
		<hr>
		&lt;abc&gt;
		
	</body>
</html>